Safety stopper for liquid-carrying and-the like containers



Dec. 22, 1959 M. RIFFET ET AL SAFETY STOPPER FOR LIQUID-CARRYING AND THELIKE CONTAINERS Filed March 17, 1958 2 Sheets-Sheet 1 INVENTORS ATTORNEY2 Sheets-Sheet 2 Dec. 22,1959 M. RIFFET ETAL SAFETY STOPPER FORLIQUID-CARRYING AND THE LIKE CONTAINERS Filed March 17, 1958 v 1 MI W/ QUnited States Patent G SAFETY STOPPER FOR LIQUID-CARRYING AND THE LIKECONTAINERS Marcel Rilfet, Lyon, and Ren Gabriel Marie Damidot, Caluire,France, assignors to Proplastex, Chauifailles (Sadne-dz-Loire), France,a company of France Application March 17, 1958, Serial No. 721,836

Claims priority, application France March 21, 1957 17 Claims, (Cl.21521) Our invention has for its object a safety stopper forliquid-carrying containers, chiefly bottles; said stopper allowsemptying the contents of the containers while preventing any subsequentrefilling by the operator unless he destroys in a readily apparentmanner said stopper whereby the fraudulent tampering is madeundisputable.

This result is obtained through the combination of various parts housedinside a body and including:

A valve designed for the control of the throughput of a liquid out ofthe container while preventing any refilling, whatever may be theposition of the container, said valve being associated with deflectingmeans such as stationary baffle plates or movable closing memberspreventing anyone from acting on the valve and disturbing its operation;

Means for securing the stopper body to the container constituted by askirt opposing any removal of the body of the stopper off the neck ofthe container without a fully apparent destruction of said securingmeans or of the stopper body.

Furthermore, auxiliary means such as safety caps, covers, notched wallsengaging the neck and the securing skirt, may be associated with theabove described arrangement, so as to satisfy special requirements.

We have illustrated in elevational view, by way of example, and by nomeans in a limiting sense, various embodiments of the invention so as toallow the object of our invention to be readily understood. In saiddrawmgs:

Figs. 1 and 2 are longitudinal sectional views of the arrangementincluding a plug or stopper secured through an independent skirt over acontainer, the valve being shown in its centered and in an eccentriclocation in said Figs. 1 and 2 respectively.

Fig. 3 is a similar view of the container in its dispensing position.

Figs. 4 and 5 are longitudinal sectional views showing a safety lidrigid with the securing skirt in Fig. 4 and with the body of the stopperin Fig. 5.

Figs. 6 and 7 are longitudinal sectional views showing two embodimentsof the stopper positioned inside the neck of a bottle.

Fig. 8 is a longitudinal sectional view of the complete stopper, thebody of which forms the skirt.

Figs. 9 and 10 are respectively a front elevational view and alongitudinal sectional view through line 101t3 of Fig. 9, showing askirt surrounding the neck of the container and provided with a portthrough which a control element is visible.

Fig. 11 is a partial longitudinal sectional view showing a fluidtightpacking inserted between the inner wall of the neck and the outer wallof the lower end of the safety stopper.

Fig. 12 is a view showing a stopper held in position by a metal skirt.

In Fig. 1, 2 designates the support of the seat of the valve, whichsupport is fitted inside the neck of the bottle or the like container 3.The valve 4 rests over the upper surface of said support which forms itsseat. The valve is provided with a tail piece 5 the diameter of which issmaller than that of the port 6 in the support 2 through which theliquid contained in the bottle may flow out. Said valve carries also anupper projection 7 the part played by which will appear hereinafter.

The lower section of the support 2 has a diameter corresponding to theinner diameter of the neck 3 so that it prevents any liquid from passingbetween the outer wall 8. of the support and the neck. If required, asuitable fluidtight packing may be fitted between said wall 8 and theneck 3 so as to obtain perfect fluidtightness. Over the support 2 arepositioned removable deflecting means 9 the part played by whichconsists in simultaneously guiding and limiting the movement of thevalve 4 when the bottle is shifted and also in concealing the valve 4.Said deflecting means 9 include chiefly a cap 10 resting on radial finsas shown at 11. It may include in an auxiliary manner further inner fins1212a, upper fins 13-13a and an outwardly directed flange 14.

Over the deflecting means 9 is mounted a movable auxiliary closing disc15 resting freely over the radial fins 11 and over the flange 14, ifany.

The deflecting means 9 include furthermore one or more projections suchas 16 in the shape of frustoconical annuli adapted to prevent anyonefrom reaching from the outside the valve 4. A stopper body 17 enclosesthe arrangement described hereinabove constituted by the deflecting cap10 and its auxiliaries. Said body 17 includes a dome-shaped section witha port 18 used for dispensing the contents of the bottle, said portbeing closed when desired by a cover 19, for instance a screwed cover.On its lower surface, said cover may include fins 20 adapted to engagethe gaps between the upper fins 1313a on the deflecting cap 10.

The arrangement which has thus been described is held against theopening of the bottle, which has been previously filled, by a skirt 21capping the body 17. Said skirt 21 is provided in its lower section withannular projections 22 forming a serrated inner surface directed in amanner such as will prevent the removal of the skirt from the neck 3capped by it. However, and with a view to furthering its insertion, thediameter of the lower end of said skirt is larger than the diameter ofits upper section. The neck 3 is provided with outer annular grooves,the outline of which mates that of the skirt and ensures a perfectengagement of the latter.

The body 17 and the skirt 21 are made of a suitably chosen material of alow elasticity so as to allow the fitting of the skirt 21 throughsuitable implements opening yieldingly said skirt.

In contradistinction, the dismantling is impossible since no tool can beintroduced after the fitting of the skirt 2 between the latter and theneck 3 without damaging the skirt 21, said damaging showing in anapparent manner that the bottle has been tampered with.

Obviously, the skirt 21 of Fig. 1 might be less high and extend less ina downward direction as illustrated in Fig. 2 whenever the bottle doesnot allow the securing of the stopper in the manner described. In such acase, the body 17 is fitted to the neck 3 through other means such as anindependent skirt 32 as illustrated in Fig. 2. Said skirt may be made ofany suitable material such as metal or plastic material for instance.

All the parts described hitherto may be made of various materials suchas metal, ceramic ware, glass, plastic material or the like.

The shape of the valve should preferably always be somewhat similar tothat disclosed; in other words, it should form a very flat sphericalcap, said shape being advantageous inasmuch as it provides an outeroblique surface preventing any mechanical normally on it.

The tail-end of the valve may be made of any material differentfrom thatof the valve 4 or it may be hollow, or again it may enclose a recessfilled with a heavy material so as to further the return movement of thevalve onto its seat under the action of gravity.

The diameter of the valve 4 is such that the opening 6 through which theliquid flows out is always completely closed when the valve rests on itsseat whatever may be its eccentric location. This eccentricity isfurthermore limited by the limited shifting of the tail-piece 5 and bythe presence of the fins 11.

The operation of the safety stopper described is as follows: When thebottle or the like container stands vertically on its lower end, thevalve 4 closes perfectly the opening 6 and opposes any introduction ofliquid. If the bottle is set aslant, the'lower surface of the valveremains in contact with the upper surface of the support 2 until themoment at which, as illustrated in Fig. 3; the vertical line passingthrough the center of gravity of the valve crosses the vertical linepassing through the bearing point 4a of the valve periphery engaging thefins 11. The rocking of the valve which is then obtained allows theflowing out of the liquid through the opening 6, through the gapsbetween the fins 11 and finally through the port 18. Said flow is notdisturbed by the annular movable closing disc 15 which occupies then theposition illustrated at 15a in Fig. 3 into which it is readily urged bythe action of gravity and by the hydrodynamic pressure of the liquid.

Obviously, the slope of the bottle for which the rocking of the valve 4is obtained depends on the position of'the center of gravity of thevalve with reference to its bearing point and it may be obtained for thedesired slope through a suitable selection of such parameters, forinstance by making the tail-piece 5 of the flap valve 4 more or lessheavy.

It should be remarked that it is impossible to refill the bottle in itssloping position since, although its valve is sufficientlv open, the aircontained in the bottle cannot escape and also since the hydrodynamicpressure urges the valve 4 into its closed position.

The presence of the deflecting means 9 including the cap 10, of annularprojections such as 16 and of the closing disc 15 prevents reaching thevalve 4 with any article such as a wire with a view to raising or toholding in its raised position the valve 4 in order to fraudulentlyintroduce liquid into the bottle. ter of fact, the actual presence ofthe closing disc 15 prevents such an introduction. The cap 10 covers thedirect access to the valve starting from the opening 18. The wire or thelike article cannot therefore enter the arrangement and, even if it wereto pass beyond the hindrance formed by the closing disc 15, it would bestopped by the annular projection 16. It is impossible to pass throughthis protecting system and furthermore the receding shape given to theouter surface of the valve 4 would deflect any tool and such a toolwould in no case be capable of engaging the gap between the lowersurface of the valve and its seat.

The combined action of the upper rod of the valve 4, of the inner fins12-12a, of the cap 10, of the upper fins 13-1311 on said cap and of thefins 20 on the cover 19 (Fig. 1) leads to allowing the valve 4 to leaveits seat whenever the bottle carries a liquid, of a sirupy nature forinstance, which has a tendency to make the valve adhere to its seat. Asa matter of fact, the rotation of the cover 19 has for its result todrive into rotation the cap 10 and more generally the completedeflecting means 9 through action of the fins 20 rigid with the cover19on the fins 13 rigidwith the inner cap 10. The rotation of the cap 10has in its turn for its result to shift and, consequently, to releasethe valve 4 through part from acting As a mataction of the inner fins 12rigid with the cap 10 on the upper projection 7 of the valve 4. Itshould be remarked that the valve 4 is practically always eccentricallypositioned, as illustrated in Fig. 2 by reason of the precedinglydescribed dispensing step.

It is important to remark that, if the bottle or container contains aliquid which has no tendency to make the valve adhere to its seat, suchas an alcohol for in stance, it is possible to cut out the parts servingfor the release of the flap valve through rotation thereof, to wit thefins 12, 13 and 20, together with the upper rod 7 rigid with the valve,which makes the arrangement simpler and consequently cheaper.

The skirt 21 (Fig. 1) or the skirt 32 (Fig. 2) ensures inviolabilitysince it prevents removing the stopper from the container. As disclosedhereinabove, such skirts can be positioned only through special meansand, consequently, by reason of their shape and of the material formingthem, they cannot be drawn out without tearing which shows out in ahighly apparent manner any fraudulent tampering. From this standpoint,the shape illustrated in Fig. 1 appears to be preferable by reason ofthe further difficulties opposing the removal of the stopper by theserrated outline of the skirt which is directed to further the insertionof the latter and to oppose a maximum resistance to its removal.

The skirt 21 or 32 is of a particular interest for receiving and holdingin position a label, a seal and in particular a governmental sealcertifying inspection and payment of any duty required. The carrier forsaid label or seal is preferably positioned in an area of the skirtwhich would be subjected to maximum damage in the case of a tentativedismantling. The area carrying the seal may furthermore be purposelyweakened so as to yield upon any abnormal stress being applied to it.

The upper section of the skirt 21 (Figs. 4 and 5)" may, if required,incorporate a small lid 24 rigid with the skirt and guaranteeingreliably for the user that the contents of the bottle are the authenticoriginal contents. Said small lid is cut out for the first dispensing ofthe contents, the cutting out being defined preferably by a groove 25.In the case of an independent skirt such as 32 being used, the lid 26may be rigid with the body 17 as shown in Fig. 5. The lid is then housedinside the outer cover 19.

Obviously, the arrangements such as the fins 12, 13, 20 may be replacedby any member leading to the same result such as rotary projectionsdriving the valve into rotation, or else by grooves, rods sliding insidecooperating recesses, and generally speaking any known means for drivingparts into rotation and adapted to provide the desired effect, withoutunduly widening thereby the scope of the invention as defined in theaccompanying claims. It is even possible to form the parts such as thevalve 4 and its seat out of any materialopposing its adherence or tocoat them with such a material opposing adherence. I

In the modified embodiment illustrated in Fig. 6, the body 48 of thesafety stopper is entirely housed inside the neck 3 of the bottle. Itmay also be rigid with its securing skirt 49 and its cover 51 may beprovided along its inner surface with a tubular projection 52 the outerwall of which is threaded as shown at 53 so as to be screwed inside thetapped bore 54 of the body 48. a

In Fig. 7, the body 56 of the stopper is provided with. a chimney-shapedextension 57 the outer wall of which is adapted to carry the cover 58screwed over it.

According to a further embodiment illustrated in Fig. 8, the body 41 ofthe stopper is reinforced by extending its lower end as provided by askirt 42 which replaces the independent skirt used in the precedingembodiments for capping said body and securing it to the neck 3 of thebottle, 1

In order to avoid during transportation the unscrewing of the cover 43,the transverse wall 44 of the stopper body (Fig. 8) or of theindependent skirt, if any, capping the stopper is provided at one ormore points or throughout its periphery with a yielding element 45folded into hookshape inwardly and adapted to recede under the pressureexerted by the flange 46 of the cover 43 so that said element engagesthe flange during the screwing of the cover or is released uponunscrewing. It is also possible to provide, as illustrated in Figs. 9and 10, a gate cut in the side wall of the skirt 6?. and the edges 61 ofwhich serve for the direct securing of a control label 64 which is setin position before introducing the neck 65 inside the skirt 62.

With a view to improving fluidtightness, there may be inserted betweenthe lower end 2 of the body of the stopper and the inner wall of theneck 3, a fiuidtight annular packing 31 which may include an inner skirt38 which may in fact be folded over itself as illustrated in Fig. 11.Said skirt forms a yielding and elastic packing which makes up for theclearance between the inner diameter of the neck 3 and the outerdiameter of the lower end 2 of the stopper body.

Lastly, when the stopper has been fitted in a tamperproof manner over abottle, its securing may be ensured by a metal skirt or strip 33 (Fig.12) set, on the one hand, over the enlarged end 34 of the neck 35 and,on the other hand, over the shoulder 36 formed by the dome-shapedsection of the stopper body or the upper edge of the neck. If thestopper lies inside the latter, the skirt 33 includes in the making atongue 37 the outline of which is continued by two lines of reducedresistance 38 extending along two generating lines of said skirt or elsealong helical lines over the periphery of the latter. Said tongueassociated with such lines of a reduced resistance allows an easytearing off of the skirt with a view to removing the safety stopper.

What I claim is:

1. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a seat facing the opening of thebody into the atmosphere, a flat valve slidingly resting on said seat,deflecting means fitted inside the hollow body between the seat and theopening facing the atmosphere, including a cap, guiding means carryingsaid cap, fitted inside the hollow body and holding the cap coaxiallyover the seat, a flat annular member resting loosely on the periphery ofthe cap, a slightly frusto-conical annulus carried along the outerperiphery of the guiding means, coaxially with and at a lower level thanthe cap and forming with the flat annular member a bafile preventing theintroduction of any implement through the opening of the body intocontact with the valve, a cover threadedly engaging the opening of thebody and a skirt fitted permanently over adjacent surfaces of the bodyand of the container on the outside of the location of the cover andpreventing removal of the body off the container otherwise than throughtearing of the skirt.

2. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a dome shaped section providedwith a seat facing the opening of the body into the atmosphere, a flatvalve slidingly resting on said seat, deflecting means including radialfins extending inside the dome-shaped section between the seat and theopening facing the atmosphere and defining between their inner ends afree axial opening, forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon sufficient sloping of thecontainer to allow passage of liquid between said valve and its seat,said deflecting means including furthermore a cap rigid with said finsand extending coaxially in the hollow body, a flat annular memberresting loosely on the periphery of the cap, a slightly frusto-conicalannulus carried along the outer periphery of the fins, coaxially withand at a lower level than the cap and forming with the flat annularmember a bathe preventing the introduction of any implement through theopening of the body into contact with the valve, a cover threadedlyengaging the opening of the body and a skirt fitted permanently overadjacent surfaces of the body and of the container on the outside of thelocation of the cover and preventing removal of the body off thecontainer otherwise than through tearing of the skirt.

3. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith co axial openings registering with the outer atmosphere and withthe opening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the atmosphere, a flatvalve slidingly resting on said seat, loose deflecting means includingradial fins extending freely in the dome-shaped section between the seatand the opening facing the atmosphere and defining between their innerends a free axial opening, forming underneath them a compartment inwhich the valve is shiftable between its normal position of rest on itsseat and a released position occupied by it upon sutficient sloping ofthe container to allow passage of liquid between said valve and itsseat, a cap lying inside the dome-shaped section of the 'body andresting rigidly on said fins to close the openings defined by thelatter, radial fins carried by the upper surface of said cap andengaging the inner periphery of the domeshaped section and lower radialfins rigid with the abovementioned cap, a flat annular member restingloosely on the periphery of the cap, a slightly frusto-conical annuluscarried along the outer periphery of the fins, coaxially with and at alower level than the cap and forming with the flat annular member abafile preventing the introduction of any implement through the openingof the body into contact with the valve, a cover threadedly engaging theopening of the body and a skirt fitted permanently over adjacentsurfaces of the body and of the container on the outside of the locationof the cover and preventing removal of the body off the containerotherwise than through tearing of the skirt.

4. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the atmosphere, a flatvalve slidingly resting on said seat, deflecting means including radialfins extending inside the dome-shaped section between the seat and theopening facing the atmosphere, defining between their inner ends a freeaxial opening and forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon sufficient sloping of thecontainer to allow passage of liquid between said valve and its seat, acap lying loosely inside the dome-shaped section of the body and carriedrigidly on said fins to close the opening defined by the latter, radialfins carried by the upper surface of said cap and engaging the innerperiphery of the dome-shaped section and lower radial fins on the capregistering with the first-mentioned radial fins inside said section, anannular disc adapted to move freely in an axial direction and restingover the upper edges of the fins carrying the cap to close the gapsbetween said fins, an annular flange extending along the inner peripheryof said dome-shaped section and forming a battle with theabove-mentioned cap and disc, preventing the introduction of anyimplement through the opening of the body into contact with the valve, acover threadedly engaging the opening of the body and a skirt fittedpermanently over adjacent surfaces of the body and of the container onthe outside of the location of the cover and preventing removal of thebody off the container otherwise than through tearing of the skirt.

5. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the atmosphere, a fiatvalve slidingly resting on said seat, deflecting means including radialfins extending inside the dome-shaped section between the seat and theopening facing the atmosphere, defining between their inner ends a freeaxial opening and forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon sufficient sloping of thecontainer to allow passage of liquid between said valve and its seat, arod rigid with the upper surface of the valve and extending inside theopening defined by the inner edges of the first-mentioned fins, anannular flange rigid with the inner periphery of said dome-shapedsection and preventing the introduction of any implement through theopening of the body into contact with the valve, a cover threadedlyengaging the opening of the body and a skirt fitted permanently overadjacent surfaces of the body and of the container on the outside of thelocation of the cover and preventing removal of the body off thecontainer otherwise than through tearing of the skirt.

6. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the amtosphere, a flatvalve slidingly resting on said seat, deflecting means including radialfins extending inside the dome-shaped section between the seat and theopening facing the atmosphere and defining between their inner ends afree axial opening, forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon sufiicient sloping of thecontainer to allow passage of liquid between said valve and its seat, acap lying inside the dome-shaped section of the body and resting on saidfins to close the opening defined by the latter, radial fins carried bythe upper surface of said cap and engaging the inner periphery of thedome-shaped section and lower radial fins on the cap extending in thegaps between the first-mentioned radial fins inside said section, anannular flange extending along the inner periphery of said dome-shapedsection a flat annular member resting on the periphery of the cap andforming with the flange a baflie, preventing the introduction of anyimplement through the opening of the body into contact with the valve,21 cover threadedly engaging the opening of the body, fins rigid withthe inside of the cover and extending into the dome-shaped section ofthe body and between the inner sections of the fins carried by the capwhereby rotation of the screwed cover produces through the successiveseries of fins a rotation of the cap, and an angular shifting of thevalve on its seat and a skirt fitted permanently over adjacent surfacesof the body and of the container on the outside of the location of thecover and preventing removal of the body off the container otherwisethan through tearing of the skirt.

7. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the atmosphere, a flatvalve slidingly resting on said seat, deflecting means including radialfins extending. inside the dome-shaped section between the seat and theopening facing the atmosphere and defining between their inner ends afree axial opening, forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon suflicient sloping of thecontainer to allow passage of liquid between said valve and its seat, acap lying inside the dome-shaped section of the body and resting on saidfins to close the opening defined by the latter, radial fins carried bythe upper surface of said cap and engaging the inner periphery of thedome-shaped section and lower radial fins on the cap extending in thegaps between the first-mentioned radial fins inside said section, afrusto-conical flange fitted along the outer periphery of the fins, aflat annular member resting on the periphery of the cap and forming withthe flange a baflie preventing the introduction of any implement throughthe opening of the body into contact with the valve, a cover threadedlyengaging the opening of the body, a chimneyshaped extension for the bodybeyond its opening into the atmosphere, said extension lying within thecover and being engaged by the upper fins on the cap and a skirt fittedpermanently over adjacent surfaces of the body and of the container onthe outside of the location of the cover and preventing removal of thebody off the container otherwise than through tearing of the skirt.

8. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially with reference to the opening of the container and provided,with coaxial openings registering with the outer atmosphere and with theopening in the container and including a seat facing the opening of thebody into the atmosphere, a tubular sleeve rigid with said body roundits second opening and engaging the neck of the container, an annularfiuidtight packing fitted between the outer wall of the body and of itssleeve, on the one hand, and the inner wall and the upper edge of thecontainer opening, on the other hand, a flat valve slidingly resting onsaid seat, deflecting means fitted inside the hollow body between theseat and the opening facing the atmosphere, including a cap, guidingmeans carrying said cap, fitted inside the hollow body and holding thecap coaxially over the seat, a flat annular member resting loosely onthe periphery of the cap, a slightly frusto-conical annulus carriedalong the outer periphery of the guiding means, coaxially with and at alower level than the cap and forming with the flat annular member abaflie preventing the introduction of any implement through the openingof the body into contact with the valve, a cover threadedly engaging theopening of the body and a skirt fitted permanently over adjacentsurfaces of the body and of the container on the outside of the locationof the cover and preventing removal of the body off the containerotherwise than through tearing of the skirt.

9. A safety stopper for a liquid-carrying bottle and the like container,provided with an opening in its neck, comprising a hollow body fittedcoaxially inside the opening of the container and provided with coaxialopenings registering with the outer atmosphere and with the opening inthe container and including a seat facing the opening of the body intothe atmosphere, a flat valve slidingly resting on said seat, deflectingmeans fitted inside the hollow body between the seat and the openingfacing the atmosphere, including a cap, guiding means carrying said cap,fitted inside the hollow body and holding the cap coaxially over theseat, a flat annular member resting loosely on the periphery of the cap,a slightly frusto-confcal annulus carried along the outer periphery ofthe guiding means, coaxially with and at a lower level than the cap andforming with the fiat annular member a battle preventing theintroduction of any implement through the opening of the body intocontact with the valve, a cover threadedly engaging the opening of thebody and a skirt fitted permanently over adjacent surfaces of the bodyand of the container on the outside of the location of the cover andenclosing fluid tightly the outer surface of the body together with apart of the outer surface of the container neck to seal said body on thecontainer.

10. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an opening in its neck, comprising a hollowbody fitted coaxially inside the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the atmosphere, a flatvalve slidingly resting on said seat, deflecting means including radialfins extending inside the dome-shaped section between the seat and theopening facing the atmosphere and defining between their inner ends afree axial opening, forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon sufiicient sloping of thecontainer to allow passage of liquid between said valve and its seat, acap lying inside the dome-shaped section of the body and carried by saidfins to close the opening defined by the latter, radial fins carried bythe upper surface of said cap, engaging the inner periphery of thedome-shaped section and lower radial fins on the cap extending in thegaps between the first-mentioned radial fins inside said section, afrusto-conical flange fitted along the outer periphery of the fins, aflat annular member resting in the periphery of the cap and forming withthe flange a baflle preventing the introduction of any implement throughthe opening of the body into contact with the valve, a cover threadedlyengaging the opening of the body and a skirt fitted permanently overadjacent surfaces of the body and of the container on the outside of thelocation of the cover and preventing removal of the body off thecontainer otherwise than through tearing of the skirt, said skirtscaling in a tamperproof manner the stopper body positioned inside theopening of the container and enclosing the outer surface of thedomeshaped section of said body together with a part of the outersurface of the container neck.

11. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an opening in its neck, comprising a hollowbody fitted coaxially with reference to the opening of the container andprovided with coaxial openings registering with the outer atmosphere andwith the opening in the container and including a domeshaped sectionprovided with a seat facing the opening of the body into the atmosphere,a flat valve slidingly resting on said seat, deflecting means includingradial fins extending inside the dome-shaped section between the seatand the opening facing the atmosphere, defining between their ends afree axial opening and forming underneath them a compartment in whichthe valve is shiftable between its normal position of rest on its seatand a released position occupied by it upon sufficient sloping of thecontainer to allow passage of liquid between said valve and its seat, acap lying inside the dome-shaped section of the body and resting on saidfins to close the openings defined by the latter, radial fins carried bythe upper surface of said cap and engaging the inner periphery of thedome-shaped section and lower radial fins on the cap extending in thegaps between the first-mentioned radial fins inside said section, afru-sto-conical flange fitted along the outer periphery of the fins, aflat annular member resting in the periphery of the cap and forming withthe flange a bafl le preventing the introduction of any implementthrough the opening of the body into contact with the valve, a coverthreadedly engaging the opening of the body, a chimney-shaped extensionfor the body beyond its opening into the atmosphere, said extensionlying within the cover and being engaged by the upper fins on the cap, askirt fitted permanently over adjacent surfaces of the body and of thecontainer on the outside of the location of the cover and preventingremoval of the body off the container otherwise than through tearing ofthe skirt and a lid closing the upper end of the chimney-shapedextension, rigid with the skirt in the making and detachable from thelatter.

12. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an opening in its neck, comprising a hollowbody fitted coaxially inside the opening of the container and providedwith coaxial openings registering with the outer atmosphere and with theopening in the container and including a domeshaped section providedwith a seat facing the opening of the body into the atmosphere, a flatvalve slidingly resting on said seat, deflecting means including radialfins extending inside the dome-shaped section between the seat and theopening facing the atmosphere and defining between their inner ends afree axial opening, forming underneath them a compartment in which thevalve is shiftable between its normal position of rest on its seat and areleased position occupied by it upon sulficient sloping of thecontainer to allow passage of liquid between said valve and its seat, acap lying inside the dome-shaped section of the body and resting on saidfins to close the opening defined by the latter, radial fins carried bythe upper surface of said cap, engaging the inner periphery of thedome-shaped section and lower radial fins on the cap extending in thegaps between the first-mentioned radial fins inside said section, afrustoconical flange fitted along the outer periphery of the fins, aflat annular member resting in the periphery of the cap and forming withthe flange a baffie preventing the introduction of any implement throughthe opening of the body into contact with the valve, a cover threadedlyengaging the opening of the body and a skirt sealing in a tamperproofmanner the stopper body positioned inside the opening of the container,forming a unit with the dome-shaped section of the body and enclosing apart of the outer surface of the container neck.

13. A safety stopper for a liquid-carrying bottle and the like containerincluding a neck provided with an opening and with outer peripheralgrooves the upper edges of which are substantially perpendicular to theaxis of the neck, comprising a hollow body fitted coaxially inside theopening of the container and provided with coaxial openings registeringwith the outer atmosphere and with the opening in the container andincluding a seat facing the opening of the body into the atmosphere, aflat valve slidingly resting on said seat, deflecting means fittedinside the hollow body between the seat and the opening facing theatmosphere, including a cap, guiding means carrying said cap, fittedinside the hollow body and holding the cap coaxially over the seat, aflat annular member resting loosely on the periphery of the cap, aslightly frusto-conical annulus carried along the outer periphery of theguiding means, coaxially with and at a lower level than the cap andforming with the fiat annular member a baffle preventing theintroduction of any implement through the opening of the body intocontact with the valve, a cover threadedly engaging the opening of thebody and a skirt fitted permanently over adjacent surfaces of the bodyand of the container on the outside of the location of the cover andincluding along its inner wall annular projections the upper edges ofwhich are substantially perpendicular to the skirt axis and match theshape of the grooves in the neck to be held securely thereinwithout anypossible removal after first insertion.

14. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an opening in its neck, comprising a hollowbody fitted coaxially with reference to the opening of the container andprovided with coaxial openings registering with the outer atmosphere andwith the opening in the container and including a seat facing theopening of the body into the atmosphere, said body being fitted insidethe container neck and including a flange extending over the upper edgeof said neck, a flat valve slidingly resting on said seat, deflectingmeans fitted inside the hollow body between the seat and the openingfacing the atmosphere, including a cap, guiding means carrying said cap,fitted inside the hollow body and holding the cap coaxially over theseat, a flat annular member resting loosely on the periphery of the cap,a slightly frusto-conical annulus carried along the outer periphery ofthe guiding means, coaxially with and at a lower level than the cap andforming with the flat annular member a bafile preventing theintroduction of any implement through the opening of the body intocontact with the valve, a cover threadedly engaging the opening of thebody and a skirt fitted permanently over adjacent surfaces of the bodyand of the container on the outside of the location of the cover andfitted tightly round the container neck, forming a unit with the flangeof the body and with the body itself to prevent removal of the bodyotherwise than through a tearing of the skirt.

15. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an opening in its neck, comprising a hollowbody fitted coaxially with reference to the opening of the container andprovided with coaxial openings registering with the outer atmosphere andwith the opening in the container and including a seat facing theopening of the body into the atmosphere, a flat valve slidingly restingon said seat, deflecting means fitted inside the hollow body between theseat and the opening facing the atmosphere, including a cap, guidingmeans carrying said cap, fitted inside the hollow body and holding thecap coaxially over the seat, a flat annular member resting loosely onthe periphery of the cap, a slightly frusto-conical annulus carriedalong the outer periphery of the guiding means, coaxially with and at alower level than the cap and forming with the flat annular member abattle preventing the introduction of any implement through the openingof the body into contact with the valve, a cover threadedly engaging theopening of the body, the lower end of the cover including an inwardlyextending flange, a skirt fitted permanently over adjacent surfaces ofthe body and of the container on the outside of the location of thecover and preventing removal of the body off the container otherwisethan through tearing of the skirt, and projecting means rigid with theouter surface of the skirt and adapted to yieldingly engage and holdfast the outer flange on the cover.

' 16. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an opening in its neck, comprising a hollowbody fitted coaxially with reference to the opening of the container andprovided with coaxial openings registering with the outer atmosphere andwith the opening in the container and including a seat facing theopening of the body into the atmosphere, a flat valve slidingly restingon said seat, deflecting means fitted inside the hollow body between theseat and the opening facing the atmosphere, including a cap, guidingmeans carrying said cap, fitted inside the hollow body and holdingthecap coaxially over the seat, a flat annular member resting loosely onthe periphery of the cap, a slightly frusto-conical annulus carriedalong the outer periphery of the guiding means, coaxially with and at alower level than the cap and forming with the flat annular member abaflle preventing the introduction of any implement through the openingof the body into contact with the valve, a cover threadedly engaging theopening of the body, a threaded tubular extension on the inner surfaceof the cover threadedly engaging the outer end of the body coaxiallywith the opening of the latter facing the atmosphere and a skirt fittedpermanently over adjacent surfaces of the body and of the container onthe outside of the location of the cover and preventing removal of thebody off the container otherwise than through tearing of the skirt.

17. A safety stopper for a liquid-carrying bottle and the likecontainer, provided with an outer peripheral flange round its opening,comprising a hollow body fitted coaxially with reference to the openingof the container and provided with coaxial openings registering with theouter atmosphere and with the opening in the container and including adome-shaped section provided with a seat facing the opening of the bodyinto the atmosphere, a flat valve slidingly resting on said seat,deflecting means including radial fins extending inside the dome-shapedsection between the seat and the opening facing the atmosphere anddefining between their inner ends a free axial opening, formingunderneath them a compartment in which the valve is shiftable betweenits normal position of rest on its seat and a released position occupiedby it upon suflicient sloping of the container to allow passage ofliquid between said valve and its seat, an annular flange extendingalong the inner periphery of said dome-shaped section, a flat annularmember resting on the periphery of the cap and forming with the flange abafile, preventing the introduction of any implement through the openingof the body into contact with the valve, a cover threadedly engaging theopening of the body and a metal skirt fitted permanently over adjacentsurfaces of the body and of the container on the outside of the locationof the cover and preventing removal of the body off the containerotherwise than through tearing of the skirt, said metal skirt bearing onthe domeshaped section of the body and on the outer peripheral end ofthe flange on the container, and means for carrying any desiredinscription on said skirt and means for tearing said skirt off.

References Cited in the file of this patent UNITED STATES PATENTS607,923 Fairhurst July 26, 1898 2,326,340 Dummer Aug. 10, 1943 FOREIGNPATENTS 703,736 Great Britain Dec. 20, 1951

